Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds

Abstract Understanding the traits that might be linked with biological invasions represents a great challenge for preventing non-target effects on local biodiversity. In predatory insects, the ability to exploit habitats for oviposition and the physiological response to prey availability differs bet...

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Autores principales:	Gabriele Rondoni, Fulvio Ielo, Carlo Ricci, Eric Conti
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c7e5a64d5d7b457fb1797dd3e18900ef
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spelling	oai:doaj.org-article:c7e5a64d5d7b457fb1797dd3e18900ef2021-12-02T16:07:06ZBehavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds10.1038/s41598-017-03471-92045-2322https://doaj.org/article/c7e5a64d5d7b457fb1797dd3e18900ef2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03471-9https://doaj.org/toc/2045-2322Abstract Understanding the traits that might be linked with biological invasions represents a great challenge for preventing non-target effects on local biodiversity. In predatory insects, the ability to exploit habitats for oviposition and the physiological response to prey availability differs between species. Those species that respond more readily to environmental changes may confer to their offspring a competitive advantage over other species. Here, we tested the hypothesis that the invasive Harmonia axyridis (Coleoptera: Coccinellidae) makes better use of information from a plant-prey (Vicia faba - Aphis fabae) system compared to the native Oenopia conglobata. Y-tube olfactometer bioassays revealed that both species used olfactory cues from the system, but H. axyridis exhibited a more complete response. This species was also attracted by plants previously infested by aphids, indicating the capacity to exploit volatile synomones induced in plants by aphid attack. Oocyte resorption was investigated when different olfactory stimuli were provided under prey shortage and the readiness of new oogenesis was measured when prey was available again. H. axyridis exhibited higher plasticity in oogenesis related to the presence/absence of plant-aphid volatiles. Our results support the hypothesis that H. axyridis is more reactive than O. conglobata to olfactory cues from the plant-prey system.Gabriele RondoniFulvio IeloCarlo RicciEric ContiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gabriele Rondoni Fulvio Ielo Carlo Ricci Eric Conti Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
description	Abstract Understanding the traits that might be linked with biological invasions represents a great challenge for preventing non-target effects on local biodiversity. In predatory insects, the ability to exploit habitats for oviposition and the physiological response to prey availability differs between species. Those species that respond more readily to environmental changes may confer to their offspring a competitive advantage over other species. Here, we tested the hypothesis that the invasive Harmonia axyridis (Coleoptera: Coccinellidae) makes better use of information from a plant-prey (Vicia faba - Aphis fabae) system compared to the native Oenopia conglobata. Y-tube olfactometer bioassays revealed that both species used olfactory cues from the system, but H. axyridis exhibited a more complete response. This species was also attracted by plants previously infested by aphids, indicating the capacity to exploit volatile synomones induced in plants by aphid attack. Oocyte resorption was investigated when different olfactory stimuli were provided under prey shortage and the readiness of new oogenesis was measured when prey was available again. H. axyridis exhibited higher plasticity in oogenesis related to the presence/absence of plant-aphid volatiles. Our results support the hypothesis that H. axyridis is more reactive than O. conglobata to olfactory cues from the plant-prey system.
format	article
author	Gabriele Rondoni Fulvio Ielo Carlo Ricci Eric Conti
author_facet	Gabriele Rondoni Fulvio Ielo Carlo Ricci Eric Conti
author_sort	Gabriele Rondoni
title	Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
title_short	Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
title_full	Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
title_fullStr	Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
title_full_unstemmed	Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
title_sort	behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c7e5a64d5d7b457fb1797dd3e18900ef
work_keys_str_mv	AT gabrielerondoni behaviouralandphysiologicalresponsestopreyrelatedcuesreflecthighercompetitivenessofinvasivevsnativeladybirds AT fulvioielo behaviouralandphysiologicalresponsestopreyrelatedcuesreflecthighercompetitivenessofinvasivevsnativeladybirds AT carloricci behaviouralandphysiologicalresponsestopreyrelatedcuesreflecthighercompetitivenessofinvasivevsnativeladybirds AT ericconti behaviouralandphysiologicalresponsestopreyrelatedcuesreflecthighercompetitivenessofinvasivevsnativeladybirds
_version_	1718384744643690496

Behavioural and physiological responses to prey-related cues reflect higher competitiveness of invasive vs. native ladybirds

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